Here are two compositions by Bennie Maupin. The first is from his album "Slow Traffic to the Right" (1977). Herbie Hancock recorded the tune earlier on his album "Crossings" (1972). Herbie's take on harmony differs from Bennie's arrangement a great deal.
The second one is transcribed from Bennie's recording "Early Reflections" (2008). The melody is played by bass clarinet and acoustic bass in unison.